Baldor BD Series User Manual page 16

BALDOR AIR COMPRESSOR
main engine air inlet. Thus, only little air can go into the main engine to ensure the system
lubricating oil pressure. At the same time, the relief valve in the electromagnetic valve or inlet
valve automatically opens, lowering the air pressure in oil-air separator, making the system
run with no-load. When the air pressure lows down to the rated limit, the control valve of the
system resets, and the machine operates in full load.
When the machine work in no-load, if the pressure does not drop to the rated limit in ten
minutes, system will automatically stop, and then the machine will be in standby mode.
3、stop machine
If need stop, please press
period of time. There's no "OFF" on the control panel, but urgent stop button. If need stop, please press the
urgent button when the machine is in unloading cases.
Only when the machine is abnormal condition, can press the urgent stop button, or else it will be
cause oil spitting phenomenon from the air inlet of air end!!!!!!
When the compressor is in abnormal situation (such as over temperature, over pressure, etc.), the
machine will automatically stop.
4、abnormal protection function
4.1 phase sequence protection
When the power line is in fault phase, it can't start. At this time, exchange any two inlet wire, and
restart.
4.2 exhaust temperature too high protection
The machine will automatically stop and alarm when the exhaust temperature reaches to the rated
temperature (generally 105 ℃). Panel will appear over temperature stop. There are many reasons causing
high exhaust temperature. The most common reason is that the oil cooler surface is covered by dust and
dirt, making oil cooling failure.
4.3 Over pressure of exhausting air protection
When exhaust pressure exceed the rated maximum pressure because of some reasons, the machine will
automatically stop and alarm and the panel will appear overpressure stop. Should check the reason, and
deal it properly.
4.4 overload protection
When the machine is overload because of some reasons, the machine will automatically stop and alarm
and the panel will appear overload stop. Should check the reason, and deal it properly.
4.5 Maintenance
There are alarm function and over pressure function. So if the machine is in these
situations: air filter plugging, oil filter plugging, oil-air separator core plugging, should do
corresponding processing.
"ON （I） " on
and alarm function (choose function)
the control panel. The machine will stop after unloading for a
16